An aircraft seat in a cubicle able to provide privacy via a hidden, sliding/pocket door drawn to a seat-side end of a divider between adjacent seats from within a facing panel of the next divider in the line of seats. The divider provides a recessed backing for the seat; whilst a return recess provides foot rest space opposite the seat. The dividers are generally S-shaped in one form. The seat in one form is a double seat, in that it comprises a convertible seat and a fixed seat immediately next to each other. The fixed seat provides an alternative seating position when the convertible seat is in bed configuration and a seat for a friend when the convertible seat is in seat configuration. In one form not only the convertible seat, but also the fixed seat have seat belts, the latter seat's belts being provided in case of turbulence during use. The convertible seat has a seat squab, a backrest and a leg rest both pivotally connected to the seat squab that are reclinable via a reclining mechanism.